I scored 610 ( 43 in Maths ) in June and decided to prepare again , I was looking to extra help in Maths since I wanted higher score. After signing up for All-In-One 47 Course , I finished up videos in 15-20 days and upgraded to All-In-One 51 course . Math revolution is a notch above all the material available in GMAT Maths today . Their material is totally based on official guides and has different teaching methodology than others. Increased my score till 46-48 in Mocks and hope to take exam soon with high score.
Math revolution team is of great help and responsive to emails I sent at any time.